Answer:
51
Step-by-step explanation:
I think
Volume = l*w*h
Equation: 1620 = 9*9*h
1620=81h
h=20 cm
ok so jacob threw 1/5 of x
if you say julien threw x and jacob threw 1/5 of that than jacob threw 1/5 of x
9.7 x 2.84 and 6.25 x 4.76
they are the only two that get close to 30 without getting over it